A. physiological B. sour C. neatly D. hair A. weren't B. noise C. methane D. twenty-first A. film B. clean C. abrupt D. event A. vain B. sauce C. was D. facility A. torrent B. pronounce C. helpful D. were A. dirty B. pardon C. women D. New Year A. grandparent B. do some research C. fried D. silence A. be known for B. young C. war D. temptation A. old B. a piece of C. the Palace Museum D. aircraft A. colleague B. so C. look back at D. breeding